10 Unusual Foods and How They’re Made: A Culinary Journey Around the World

3. Balut – The Filipino Fertilized Duck Egg

Where: Philippines

How It’s Made: Balut begins as a fertilized duck egg, incubated for 14–21 days until the embryo develops. The egg is then boiled and eaten directly from the shell, often seasoned with salt, vinegar, or chili. The embryo provides a mix of textures, from the savory broth to the tender duckling inside.